Car-truck.



WITNESSES:

O. HOUHBERG.

CAR TRUCK. APPLIOATION rum 11:12.5, 190s.

Patented July 6, 1909.

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A TTORNEY.

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0. HOOHBBRG.

GAB TRUCK.

uruonrol nun ran. 5, 19 0.

Patented July 6; 1909.

2 SHEETS-8H3]! 2.

. ATTORNEY.

OSCAR I-IOCHBERG, OF ST. LOUIS, MISSOURI.

CAR-TRUCK.

Specification of Letters Patent.

Application filed February 5, 1908.

Patented July 6, 1909.

Serial No. 414,388.

To all whom "it may concern:

Be it known that I, OSCAR I-Ioounnne, a citizen of the United States, residing atSt. Louis, in the State of Missouri, have invented certain new and useful Improvements in Car-Trucks, of which the following is a specification.

The object of my invention is to provide a new and improved side frame for car trucks that shall facilitate assembling the ordinary flanged bolster therewith.

To this end my invention consists of the structure described and defined in the following specification and claims.

Referring to the drawings-Figure 1 is a side elevation of my improved side frame. Fig. 2 is a vertical cross section thereof on the line 2-2 of Fig. 1, looking in the direction of the arrow. Figs. 3, 4, 5 and 6 are horizontal sections taken at various heights, as indicated by the lines 3'3, 4-4, and 55 in Fig. 2. These show the relation of the end of the bolster at various stages of its assembling with the side frame. Fig. 7 is a side elevation of a modification of my improved side frame. Figs. 8 and 9 are horizontal sections taken on the correspondingly numbered lines of Fig. 7. Figs. 10, 11, 12, 13 and 14 are vertical sections taken on the line 10 of Fig. 7 showing the end. of the bolster in its relation to the side frame at various stages of putting the two together.

My improved side frame has the usual top arch bar 15, lower arch bar 16 and journal box bracket 18. The bolster spring seat 17 is at the bottom of the bolster opening 17 on the lower arch bar 16. The two column guides 19 have their inner faces recessed as will now be described for the purpose of admitting the introduction of the end of the bolster into the opening 17. At the lower part of the bolster opening where the section of Fig. 3 is taken the inner face of each column guide consists of a plane surface 20 with a flange 21 projecting inwardly from the outer edge thereof. At the middle of the height of each column guide there is a broad surface 22 in the same vertical plane with the edge of the flange 21, but above the said flange 21 there is a recess 23, the bottom of the latter being in the same vertical plane with the face 20. At the top of the column guide the inner face extends clear across, as indicated by the reference numeral 24, in the same vertical plane with the surface 22 and the edge of the flange 21. l

The end of the bolster is represented by the reference numeral 25 and it carries the outer flanges 26 and the inner flanges 27. The flanges 26 may be introduced between the faces 20 at either side of the bolster opening until they strike the flanges 21 on the column guides, as shown in Fig. 3. Then the bolster may be raised and the flanges 26 thereon will pass up into the recesses 23, as illustrated in Fig. 4. As soon as the flanges 26 on the bolster get above the flanges 21 on the column guides, then the bolster may be pushed farther through the bolster opening, as illustrated in Fig. 5. Thereafter the bolster may be raised still further until its flanges embrace the full width surfaces 24 at the tops of the column guides, as illustrated in Fig. 6. The reverse operation of removing the end of the bolster from the bolster opening in the side frame will be sufficiently obvious from what has been said.

In the modification illustrated in Figs. 7 to 14, inclusive, the general structure is the same, but the inner faces of the column guides are recessed somewhat differently. At the bottom of each column guide its inner face consistsof the plane surface 2f) with a rib or flange 21 projecting inwardly from the center thereof. Higher up the surface 23 forms a continuation of the surface 20, but instead of the single central rib 21 there are two flanges 22 extending for a like distance from the edges of the surface 23 This structure will be more apparent in connection with a description of Figs. 10 to 14, which illustrate the successive steps in the assembling of the side frame and the end of the bolster. The bolster end 25 is first pushed into the bottom of the opening, and the outer flanges 26 pass under the lower ends of the flanges 22 on the column guides until the said flanges 26 strike the ribs 21 on the column guides. Then the bolster 25 is raised until the flanges 26 thereon pass clear above the flange 21 on the column guide, as illustrated in Fig. 11. At this time the flanges 26 on the bolster will be between the flanges 22 on the column guide. Next the bolster 25 is pushed farther through the bolster opening, to the position shown in the upper part of Fig. 12, then it is dropped down until the flanges 26 on the bolster get below the lower ends of the flanges 22 on the column guides. Thereafter the bolster is pushed still farther through the opening to the position shown in Fig. 13, and then it is raised to the position shown in Fig. 14 in which the flanges on the bolster completely embrace the flanges 22 on the column guides.

It will be seen that I have provided a side frame having a bolster opening of substantially uniform width throughout the height thereof. This opening is of less width at all heights thereof than the combined width of the bolster and its flanges, but it is provided with means for permitting the introduction of the bolster into the opening. The inner faces of the column guides that bound the bolster opening on either side are channeled so that by vertical displacement of the bolster a path is found for the flanges thereon when it is desired to introduce the bolster to the bolster opening or remove it therefrom. In both forms of the invention as herein disclosed there are staggered guides on the lateral faces of the bolster opening. The ribs or flanges 21, 21" and 22 add materially to the strength of the column guides making them substantially as strong as if their inner faces were not recessed, as described. Moreover, the arrangement of the guides is such that the bolster cannot accidentally become disconnected from the side frame.

It is obvious that the circuitous channels q I l 1n the faces of the column guides, Will not in any ordinary case permit accidental separation.

It will be understood by those skilled in the art that after the bolster has been introduced into the bolster opening the usual springs may be introduced below the end of the bolster and above the seat 17.-

I claim:

1. In a car truck side frame having two vertical bolster guides with a bolster opening between them, the upper portion of each column being of channel section in combination with a lower portion of a tee section.

2. A car truck side frame having two ver tical column guides with a bolster opening between them, the said uides having their inner faces recessed part way across at the bottom so as to admit the bolster flanges, and having branch recesses extending upwardly from said bottom recesses.

3. The combination in a car truck side frame with a bolster opening therein and bolster guides, each guide having a channel section at their upper portions with their flanges inwardly directed and a tee section at their lower portions with their flanges inwardly directed.

A car truck side frame having a bolster opening therein, the sides at the lower portion. of said opening being recessed part way across, with a rib centrally placed and projecting inwardly from the recessed plane of column.

5. A car truck side frame provided with column guides and having a bolster opening between them, each of said column guides, being provided. with two inwardly projecting ribs at their upper portions and with the safety ribs 21 at their lower portions.

6. A car truck side frame having column guides and provided with bolster opening between them, each of said column guides having flanges projecting inwardly from upper edges thereof and terminating at a predetermined point between top archbar and spring seat, and a safety flange centrally placed and projecting inwardly from lower plane of columns.

OSCAR- HOCHBERG.

lVitnesses Hosns ITARTMANN, Jessa T. l 'RIDAY. 

